866786517536356 has 12 divisors (see below), whose sum is σ = 1516882606653568. Its totient is φ = 433391487063912.

The previous prime is 866786517536353. The next prime is 866786517536371. The reversal of 866786517536356 is 653635715687668.

866786517536356 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (82) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 866786517536356.

It is not an unprimeable number, because it can be changed into a prime (866786517536353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 441824976 + ... + 443782471.

Almost surely, 2^{866786517536356} is an apocalyptic number.

It is an amenable number.

866786517536356 is a deficient number, since it is larger than the sum of its proper divisors (650096089117212).

866786517536356 is a wasteful number, since it uses less digits than its factorization.

866786517536356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885852138 (or 885852136 counting only the distinct ones).

The product of its digits is 27433728000, while the sum is 82.

The spelling of 866786517536356 in words is "eight hundred sixty-six trillion, seven hundred eighty-six billion, five hundred seventeen million, five hundred thirty-six thousand, three hundred fifty-six".